[Python-ideas] Adding "+" and "+=" operators to dict

[MRAB]

On 2015-02-13 00:30, Ethan Furman wrote:
> On 02/12/2015 04:26 PM, Eric Snow wrote:
>> On Thu, Feb 12, 2015 at 11:21 AM, Thomas Kluyver <thomas at kluyver.me.uk> wrote:
>>> Or perhaps even a classmethod:
>>>
>>> dict.merged(a, b, c)
>>
>> A dict factory classmethod like this is the best proposal I've seen
>> thus far. *  It would be nice if the spelling were more succinct
>> (that's where syntax is helpful).  Imagine:
>>
>>   some_func(**dict.merged(a, b, c))
>
> That looks an awful lot like
>
>      some_func(**chainmap(a, b, c))
>
How about making d1 | d2 return an iterator?

You could then merge dicts with no intermediate dict:

     merged = dict(a | b | c)

     some_func(**a | b | c)